Regarding performance/cost, there's no mention of Proof of Stake-based blockchains or variants (http://bitshares.org/security/delegated-proof-of-stake.php http:

Regarding performance/cost, there's no mention of Proof of Stake-based blockchains or variants (http://bitshares.org/security/delegated-proof-of-stake.php http://bitshares.org/security/delegated-proof-of-stake.php)